| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Headlamp aim out of alignment | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Registration plate issues | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake cylinder leaking (1.1.16 (b) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component leaking tap |7.2.1a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension bush excessively deteriorated rear shock absorber upper and lower bush`s |2.4.A2a|i|| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Stop lamp not working Control 2 |foot pedal| |4.3.1 |a| |ii|| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Front suspension assembly component missing |2.3.1| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Position lamp not working sidelight (4.2.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Upper Riders seat insecure |6.2.1a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Stop lamp light intensity significantly reduced Rear light / brake light connections reversed |4.3.3 |a| |ii|| | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Footrest insecure R/H/F - split pin missing |6.2.12 |a|| | 1 |
| Footrest missing R & L rear |6.2.12 |a|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Footrest insecure missing c/clips |6.2.12 |a|| | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |